import React from "react";
import {NavLink, useRoutes } from 'react-router-dom'
import routes from "./routes";

export default function App() {

  // 根据路由表, 生成路由注册的标签
  const element = useRoutes(routes) // 生成所有路由的配置

  return (
    <>
      <div className="row">
        <div className="col-xs-offset-2 col-xs-8">
          <div className="page-header">
            <h2>React Router Demo</h2>
          </div>
        </div>
      </div>
      <div className="row">
        <div className="col-xs-2 col-xs-offset-2">
          <div className="list-group">
            {/* 定义路由链接 */}
            <NavLink className={({isActive}) => isActive ? 'list-group-item atguigu' : 'list-group-item'} to="/about">About</NavLink>
            <NavLink className='list-group-item' to="/home">Home</NavLink>
            <a href="/home">一般链接</a>
           {/*  <a className="list-group-item active" href="./about.html">
              About
            </a>
            <a className="list-group-item" href="./home.html">
              Home
            </a> */}
          </div>
        </div>
        <div className="col-xs-6">
          <div className="panel">
            <div className="panel-body">
              {/* 在此显示路由组件界面 => 在此注册路由 */}
              {element}

              {/* 在此只显示一级路由, 其它的子路由是找对应的Outlet的确定显示的位置 */}
              {/* <Routes>
                <Route path="/about" element={<About/>}></Route>
                <Route path="/home" element={<Home/>}>
                  <Route path="/home/news" element={<News/>}></Route>
                  <Route path="/home/message" element={<Message/>}></Route>
                </Route>
                <Route path="/" element={<Navigate to="/about"/>}/>
              </Routes> */}

            </div>
          </div>
        </div>
      </div>
    </>
  );
}
